CN201269045Y - Emergency hoisting and automatic bit feeding apparatus of oil-well rig - Google Patents
Emergency hoisting and automatic bit feeding apparatus of oil-well rig Download PDFInfo
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- CN201269045Y CN201269045Y CNU2008200596240U CN200820059624U CN201269045Y CN 201269045 Y CN201269045 Y CN 201269045Y CN U2008200596240 U CNU2008200596240 U CN U2008200596240U CN 200820059624 U CN200820059624 U CN 200820059624U CN 201269045 Y CN201269045 Y CN 201269045Y
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Abstract
An emergency lifting and automatic drill supplying device for an oil drilling machine consists of a clutch, a hydraulic motor, a hydraulic speed-regulating manifold block assembly, a controller and a combined hydraulic station. The hydraulic motor is connected with a winch reducing box by a clutch, and the hydraulic motor, a flow proportional valve, an amplifier, a reversing solenoid valve, a check equilibrium valve and a check valve form a hydraulic motor speed-regulating system. In an automatic state, the controller realizes the automatic regulation of the drilling or the mechanical drilling speed according to a motor spindle rotation speed signal of a PG velometer arranged on a hydraulic motor shaft and according to a hanging load signal of a hanging load converter arranged on a dead rope fixer. A manual state can realize the emergency lifting or manual drill supply of a winch by lifting/dropping an operating handle. The combined hydraulic station is a drilling machine assorted apparatus and provides motivity for a drill floor well mouth hydraulic apparatus. The utility model has the advantages of safe, stable and simple drill supply and low cost and is an ideal emergency lifting and automatic drill supplying device for the oil drilling machine, which has high cost efficiency.
Description
Technical field
The utility model belongs to a kind of oil-well drilling equipment, particularly winch emergency power drive unit and the automatic driller of oil-well rig in creeping into operation.
Background technology
Current, for power and executing agency in supporting automatic bit feed of oil-well rig and the emergent lifting appliance adopt the ac variable-frequency electric motor transmission scheme mostly, individual other also disposes the hydraulic pressure dish and stops and make drill feeding facility, and the merits and demerits of this configuration is all apparent.Stopping with the hydraulic pressure dish is that the drill feeding facility advantage of executing agency is a braking function (parking braking, service braking) and send to bore function and be combined into one, thereby the mechanical part of drill feeding facility machine is more succinct.Because the nonlinear characteristic of dish braking power makes the bad stability of system when shallow stratum and troublesome zone drilling, automatic driller can not fully be used in creeping into operation.In addition, operate careless slightlyly, occur percussion drill and drilling string not well braked phenomenon easily, require the security monitoring measure must be very careful, it be highly careful to manipulate.The drill feeding facility of ac variable-frequency electric motor configuration then just in contrast.Ripe motor frequency conversion drive technology makes and send the drilling speed degree to control easy held stationary, manipulates relatively safely, and adjusting of controlling parameter also is easier to realize.But adjustable frequency motor very easily generated heat because of long-time big electric current low cruise when the shortcoming of this configuration was to send brill, and efficient is very low, directly reduces the reliability of motor.Essential moment of torsion when guaranteeing low speed requires electric current, the power capacity of equipment all will improve the 1-2 shelves during type selecting, cause that equipment volume is huge, cost effectiveness is lower.Therefore, all join under the state of the art stopped of dish at current rig, adopting variable-frequency motor to send again and boring not is a kind of optimization configuration.
Summary of the invention
The purpose of this utility model is to use in a large number under the situation of hydraulic test at the oil-well rig rig tool, designing a kind of is the emergent lifting and the automatic driller of power and executing agency with the hydraulic motor, it can constitute a kind of simple, reliable novel automatic driller with a small amount of control element such as PLC controller, electric flow quantity proportioning valve again simultaneously as a kind of emergency power power of winch.This device not only has the advantage that variable-frequency motor send brill, avoid current variable-frequency motor that generally adopts or hydraulic pressure dish to stop and sent the efficient and low, the bulky shortcoming of cost effectiveness of boring existence, also fully improve the utilization ratio in assembled hydraulic source, had tangible economic benefit.
For achieving the above object, principle scheme of the present utility model is:
A kind of hydraulic motor that adopts is used as power and the oil-well rig automatic bit feed of executing agency, emergent lifting appliance, by suspending weight converter, clutch, hydraulic motor and Hydraulic Adjustable Speed integrated package assembly, hand hoisting/transfer control crank SM, automatic/hand changeover switch SX, controller and assembled hydraulic station to form.
The main shaft of hydraulic motor links to each other with second power shaft of winch reduction box by clutch, provides to send to bore and the emergent power that promotes.
Corresponding with Hydraulic Adjustable Speed integrated package assembly respectively hydraulic fluid port A of the hydraulic fluid port A of hydraulic motor and hydraulic fluid port B and hydraulic fluid port B are communicated with, and formation supplies, oil return line; Hydraulic fluid port C then links to each other with integrated package C mouth with liquid braking device, and the brake action does not realize the motor parking braking when the oil supply loop of hydraulic motor has pressure.
The input in terminal of the electric flow quantity proportioning valve amplifier on the Hydraulic Adjustable Speed integrated package links to each other with the terminal 9 of automatic/hand changeover switch SX, and the forward and reverse terminal 1,2 of reversing solenoid valve links to each other with SX automatic/hand changeover switch terminal 7,8 respectively; Controller analog quantity lead-out terminal links to each other with SX automatic/hand changeover switch terminal 5, and the digital quantity lead-out terminal that the control hydraulic motor turns to links to each other with SX automatic/hand changeover switch terminal 1,3; The hydraulic motor steering controling signal of SM hand hoisting/transfer on the control crank links to each other with the terminal 2,4,6 of SX automatic/hand changeover switch respectively with speed-regulating signal.Switching by SX automatic/hand changeover switch can make this device be in manual state or auto state.During manual state, can be by the SM hand hoisting/transferring control crank carries out the lifting of winch or transfer manipulation.During auto state,, carry out the automatic bit feed operation by the lowering velocity of controller according to given the pressure of the drill value (or drilling speed) control winch.
The oil-feed ent mouth of Hydraulic Adjustable Speed integrated package and oil return ret mouth are communicated with by corresponding with the assembled hydraulic station respectively confession of oil pipe, oil return opening, provide hydraulic power source by the assembled hydraulic station;
The PG velometer is installed on the hydraulic motor output shaft, and its output signal links to each other with the counter terminal of controller; Its output signal of BS suspending weight converter that is installed on the dead line anchor links to each other with the analog quantity input terminal of controller, respectively as the pressure of the drill of controller and the feedback signal of winch speed.
Hydraulic Adjustable Speed integrated package assembly then is made up of one way valve, unidirectional equalizing valve, high pressure shuttle, reversing solenoid valve, electric flow quantity proportioning valve and closed loop amplifier.Above-mentioned each element is installed on the hydraulic manifold block, and the connection of the piping diagram in the two-dot chain line frame shown in the by specification accompanying drawing 1, that is: the A mouth of the B mouth of the A mouth of one way valve, unidirectional equalizing valve, high pressure shuttle links to each other with the A mouth of solenoid operated directional valve; The A mouth of unidirectional equalizing valve, the B mouth of one way valve be A mouth connection with it in integrated package; The C mouth of the B mouth of high pressure shuttle, the B mouth of solenoid operated directional valve, unidirectional equalizing valve is B mouth connection with it in integrated package; The C mouth is continuous with it in integrated package for 0 mouthful of high pressure shuttle; The A mouth of electricity flow quantity proportioning valve is connected with the P mouth of solenoid operated directional valve, the P mouth then is connected with ent oil-in in the integrated package, the T mouth then is connected with exc drain tap in the integrated package; 0 mouthful of reversing solenoid valve in integrated package with it the ret oil return opening be connected.
Technique effect of the present utility model:
The device of this utility model not only has the advantage that variable-frequency motor send brill, avoid current variable-frequency motor that generally adopts or hydraulic pressure dish to stop and sent the efficient and low, the bulky shortcoming of cost effectiveness of boring existence, also fully improve the utilization ratio in assembled hydraulic source, had tangible economic benefit.
Description of drawings
Accompanying drawing 1 is a structural principle schematic diagram of the present utility model.
Label declaration in the accompanying drawing 1
1. hook carries signal transmitting device 11. high pressure shuttle
2. winch 12. reversing solenoid valves
3. winch drive motors 13. hydraulic manifold blocks
4. winch dual input shaft reduction box 14. electric flow quantity proportioning valves
5. clutch 15. electric flow quantity proportioning valve amplifiers
6. hydraulic motor velometer 16. automatic/hand reversing switches
7. low speed high torque hydraulic motor 17. controllers
8. liquid braking device 18. hand hoistings/transfer control crank
9. one way valve 19. assembled hydraulic stations
10. unidirectional equalizing valve
The specific embodiment
Come emergent lifting of the present utility model, drill feeding facility are done further and elaborated below in conjunction with accompanying drawing and specific embodiment, but can not limit protection domain of the present utility model with this.Please see Figure 1 earlier, Fig. 1 is a structural principle schematic diagram of the present utility model.As seen from the figure, 1, a kind of oil-well rig automatic bit feed, emergent lifting appliance, be made up of winch 2, reduction box 4 and the electrical machinery of active force 3 that is connected on first power shaft, being connected with the hydraulic motor on second power shaft of reduction box 4 is the automatic bit feed of power, emergent lifting appliance; By velometer, suspending weight converter, clutch, hydraulic motor and Hydraulic Adjustable Speed integrated package assembly, hand hoisting/transfer control crank SM, automatic/hand changeover switch SX, controller and assembled hydraulic station to form, the main shaft of hydraulic motor 7 links to each other with second power shaft of winch reduction box 4 by clutch 5, provides to send to bore and the emergent power that promotes; The hydraulic fluid port A of hydraulic motor 7 and hydraulic fluid port B are communicated with Hydraulic Adjustable Speed integrated package assembly 13 corresponding hydraulic fluid port A and hydraulic fluid port B respectively, and hydraulic fluid port C then links to each other with liquid braking device 8; The input in terminal of the electric flow quantity proportioning valve amplifier 15 on the Hydraulic Adjustable Speed integrated package assembly 13 links to each other with the terminal 9 of automatic/hand changeover switch SX16, and the forward and reverse terminal 1,2 of reversing solenoid valve 12 links to each other with the terminal 7,8 of automatic/hand changeover switch SX16 respectively; Controller 17 analog quantity lead-out terminals link to each other with the terminal 5 of automatic/hand changeover switch SX16, and the digital quantity lead-out terminal that the control hydraulic motor turns to links to each other with the terminal 1,3 of automatic/hand changeover switch SX16; The hydraulic motor steering controling signal of SM hand hoisting/transfer on the control crank (18) links to each other with the terminal 2,4,6 of automatic/hand changeover switch SX (16) respectively with speed-regulating signal; The oil-feed ent mouth of Hydraulic Adjustable Speed integrated package assembly 13 and oil return ret mouth are communicated with assembled hydraulic station 19 corresponding hydraulic fluid ports respectively by oil pipe; PG velometer 6 is installed on the hydraulic motor output shaft, and its output signal links to each other with the counter terminal of controller 17; Be installed in the BS suspending weight transmitter 1 on the dead line anchor, its output signal links to each other with the analog quantity input terminal of controller 17; Described Hydraulic Adjustable Speed integrated package assembly 13 is made up of one way valve 9, unidirectional equalizing valve 10, reversing solenoid valve 12, electric flow quantity proportioning valve 14 and closed loop amplifier 15, above-mentioned each element is installed on the hydraulic manifold block, and the A mouth of the A mouth of one way valve 9, the B mouth of unidirectional equalizing valve 10, high pressure shuttle 11 links to each other with the A mouth of solenoid operated directional valve 12; The A mouth of unidirectional equalizing valve 10, the B mouth of one way valve 9 be A mouth connection with it in integrated package; The C mouth of the B mouth of high pressure shuttle 11, the B mouth of solenoid operated directional valve 12, unidirectional equalizing valve 10 is B mouth connection with it in integrated package; The C mouth is continuous with it in integrated package for the O mouth of high pressure shuttle 11; The A mouth of electricity flow quantity proportioning valve 14 is connected with the P mouth of solenoid operated directional valve 12, the P mouth then is connected with ent oil-in in the integrated package, the T mouth then is connected with exc drain tap in the integrated package; The O mouth of reversing solenoid valve 12 in integrated package with it the ret oil return opening be connected.
1. the basic comprising of said apparatus
The utility model is made of power part, Hydraulic Adjustable Speed parts, the pressure of the drill, drilling speed control assembly and assembled hydraulic station four parts.Power part is made up of power such as dual input shaft reduction box 4, air clutch 5, hydraulic motor 6 and gearing; The Hydraulic Adjustable Speed parts are mainly by the electric flow quantity proportioning valve and the amplifier 14,15 that are installed on the hydraulic manifold block 13, reversing solenoid valve 12, one way valve 9, Hydraulic Adjustable Speed assembly that unidirectional equalizing valve 10 Hydraulic Elements such as grade are constituted and SX automatic/hand changeover switch 16, hand hoisting/transfer handle 18 to form jointly; The pressure of the drill, drilling speed control assembly by controller 17, BS hook carry transmitter 1, PG velometer 6 is formed speed and the pressure of the drill control closed loop.
2. the solution of emergent lifting, lowering function
The emergent lifting of winch, lowering function are under the device manual state, promote/transfer that handle realizes by operation.It realizes that principle is: when promoting/transferring handle 18 and place raised position, lifting switch in the handle gets the 1# terminal of solenoid operated directional valve 12, hydraulic oil flows to the A mouth by the P mouth of solenoid operated directional valve, through one way valve 9, then flow to the A mouth of hydraulic motor 7, promoting motor just changes, and the low pressure oil after the workmanship flows to the B mouth of solenoid operated directional valve from the B mouth of hydraulic motor 7.The winch drum that motor spindle links to each other with reduction gearbox output shaft by clutch 5, reduction box 4 is delivered to the traveling system of rig with the moment of torsion of motor output, makes the rising of rig hook.Otherwise, place when transferring the position when promoting/transfer handle 18, the switch of transferring in the handle gets the 2# terminal of solenoid operated directional valve 12, hydraulic oil flows to the B mouth by the P mouth of solenoid operated directional valve, flows to the B mouth of hydraulic motor 7 then, because the B mouth oil pressure ratio A mouth of hydraulic motor is high, unidirectional equalizing valve 10 is opened, the drainback passage of formation from hydraulic motor 7A mouth to solenoid operated directional valve 12A mouth promotes the motor counter-rotating, thereby the rig hook transferred.
3. emergent lifting, the speed-regulating function solution when transferring
The emergent lifting of winch, the speed governing when transferring realize by adjusting hydraulic motor 7 flows, and be specific as follows:
In hand hoisting/the transfer handle 18 except the switch that control hydraulic motor 7 turns to is installed, the speed regulating control potentiometer also is housed, and after turning handle surpassed certain angle, the voltage of potentiometer output was relevant with the rotational angle of control crank, the little output voltage of angle is also little, and the big output of angle is also big.The voltage of control crank potentiometer output is added to the input of electric flow quantity proportioning valve amplifier 15 by SX automatic/hand changeover switch 16, converts the current signal of control flow proportion valve 14 to, and the throttling of control ratio valve realizes the Flow-rate adjustment of proportioning valve.Because the flow of flow proportion valve 14 is proportional to the voltage of control crank 18 potentiometers output, the rotating speed of hydraulic motor 7 also is proportional to the rotational angle of control crank 18.Therefore, rotate control crank and can easily realize that just winch promotes, the lowering velocity adjustment.For keeping the steady, reliable of speed adjustment process, control crank has damping and location locking mechanism.
4. the solution of automatic bit feed function
Automatic bit feed function of the present utility model is to be executing agency with hydraulic motor 7, electricity flow quantity proportioning valve 14 is adjusted element for the hydraulic motor flow, directly on the basis of open loop control motor rotary speed, be equipped with the closed-loop control that closed loop controller and BS hook carry transmitter 1, PG velometer 6 composition speed and the pressure of the drill.Its concrete scheme is as follows:
Can think on one section not oversize formation drilling according to equation for drilling rate, stratum hardness, hydraulic parameters, rotary speed, when the circulation pump pressure is constant substantially, the pressure of the drill depends primarily on and send the drilling speed degree, therefore adjusts and send the drilling speed degree can adjust control the pressure of the drill.Permanent the pressure of the drill control scheme of automatic bit feed is promptly according to this principle design.
Permanent the pressure of the drill control scheme of controller 17 is tandem control schemes, and interior ring is the speed gate ring, and outer shroud is the pressure of the drill gate ring.Tandem control is a kind of multilayer control strategy, robustness and anti-interference is decomposed different links control respectively.
Be positioned at the motor rotary speed signal of the PG velometer 6 on hydraulic motor 7 main shafts, via controller 17 is compared the speed error that is processed into hydraulic motor 7 main shafts with given rotating speed, as the adjustment signal of ring-speed ring in the controller.Secondly, be installed in hook that BS hook on the dead line anchor carries transmitter 1 and carry suspending weight that signal writes down subtract each other and be processed into the pressure of the drill actual value through with controller 17 suspending weight return-to-zero the time, constitute outer shroud-the pressure of the drill ring of controller 17 as the pressure of the drill feedback adjusting signal.The adjuster of inner and outer rings adopts robustness better, the intelligent PID type adjuster with certain adaptive ability.
Below to keeping the constant adjustment process of the pressure of the drill to do an explanation.Suppose that certain factor reduces the pressure of the drill, promptly the BS hook hook that carries transmitter 1 output carries feedback signal and becomes big, compares with given the pressure of the drill, and the pressure of the drill error becomes and increases, and after adjusting through the pressure of the drill ring adjuster, adjuster output increases, and expression needs to strengthen send the drilling speed degree; The corresponding also increase of velocity error of generation is compared in the output of the pressure of the drill ring adjuster with the feedback speed signal of PG velometer 6, the output of speed ring is increased, the output that is controller 17 increases, and the fuel supply flow rate of electric flow quantity proportioning valve 12A mouth increases, and makes hydraulic motor 7 transfer faster rotational speed.Owing to send the drilling speed degree to strengthen, cause the pressure of the drill to rise gradually, the pressure of the drill error reduces gradually.When the pressure of the drill error is reduced to zero gradually, send the drilling speed degree no longer to increase, the pressure of the drill maintains on the new equalization point.
Claims (4)
1, a kind of oil-well rig automatic bit feed, emergent lifting appliance, be made up of winch (2), reduction box (4) and the electrical machinery of active force (3) that is connected on first power shaft, it is characterized in that: being connected with the hydraulic motor on second power shaft of reduction box (4) is the automatic bit feed of power, emergent lifting appliance;
By velometer, suspending weight converter, clutch, hydraulic motor and Hydraulic Adjustable Speed integrated package assembly, hand hoisting/transfer control crank SM, automatic/hand changeover switch SX, controller and assembled hydraulic station to form, the main shaft of hydraulic motor (7) links to each other with second power shaft of winch reduction box (4) by clutch (5), provides to send to bore and the emergent power that promotes; Corresponding with Hydraulic Adjustable Speed integrated package assembly (13) respectively hydraulic fluid port A of the hydraulic fluid port A of hydraulic motor (7) and hydraulic fluid port B and hydraulic fluid port B are communicated with, and hydraulic fluid port C then links to each other with liquid braking device (8); The input in terminal of the electric flow quantity proportioning valve amplifier (15) on the Hydraulic Adjustable Speed integrated package assembly (13) links to each other with the terminal 9 of automatic/hand changeover switch SX (16), and the forward and reverse terminal 1,2 of reversing solenoid valve (12) links to each other with the terminal 7,8 of automatic/hand changeover switch SX (16) respectively; Controller (17) analog quantity lead-out terminal links to each other with the terminal 5 of automatic/hand changeover switch SX (16), and the digital quantity lead-out terminal that the control hydraulic motor turns to links to each other with the terminal 1,3 of automatic/hand changeover switch SX (16); The hydraulic motor steering controling signal of SM hand hoisting/transfer on the control crank (18) links to each other with the terminal 2,4,6 of automatic/hand changeover switch SX (16) respectively with speed-regulating signal; The oil-feed ent mouth of Hydraulic Adjustable Speed integrated package assembly (13) and oil return ret mouth are communicated with the corresponding hydraulic fluid port in assembled hydraulic station (19) respectively by oil pipe; PG velometer (6) is installed on the hydraulic motor output shaft, and its output signal links to each other with the counter terminal of controller (17); Be installed in the BS suspending weight transmitter (1) on the dead line anchor, its output signal links to each other with the analog quantity input terminal of controller (17);
Described Hydraulic Adjustable Speed integrated package assembly (13) is made up of one way valve (9), unidirectional equalizing valve (10), reversing solenoid valve (12), electric flow quantity proportioning valve (14) and closed loop amplifier (15), above-mentioned each element is installed on the hydraulic manifold block, and the B mouth of the A mouth of one way valve (9), unidirectional equalizing valve (10), the A mouth of high pressure shuttle (11) link to each other with the A mouth of solenoid operated directional valve (12); The B mouth of the A mouth of unidirectional equalizing valve (10), one way valve (9) is A mouth connection with it in integrated package; The C mouth of the B mouth of the B mouth of high pressure shuttle (11), solenoid operated directional valve (12), unidirectional equalizing valve (10) is B mouth connection with it in integrated package; The C mouth is continuous with it in integrated package for 0 mouthful of high pressure shuttle (11); The A mouth of electricity flow quantity proportioning valve (14) is connected with the P mouth of solenoid operated directional valve (12), the P mouth then is connected with ent oil-in in the integrated package, the T mouth then is connected with exc drain tap in the integrated package; 0 mouthful of reversing solenoid valve (12) in integrated package with it the ret oil return opening be connected.
2, a kind of oil-well rig automatic bit feed according to claim 1, emergent lifting appliance, it is characterized in that, the deceleration device of described reduction box (4) for having multiple machine driving form and structure can be gear, sprocket wheel, belt wheel or single-stage or multi-stage speed-reducing machine.
3, a kind of oil-well rig automatic bit feed according to claim 2, emergent lifting appliance, it is characterized in that, described hydraulic motor (7) be low speed high torque hydraulic motor or for the band liquid braking device low speed high torque hydraulic motor or for the band reductor the hydraulic motor slewing equipment.
4, a kind of oil-well rig automatic bit feed according to claim 2, emergent lifting appliance is characterized in that, described controller (17) can be the PLC programmable logic controller or for industrial control computer or be the PID adjuster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200596240U CN201269045Y (en) | 2008-06-12 | 2008-06-12 | Emergency hoisting and automatic bit feeding apparatus of oil-well rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200596240U CN201269045Y (en) | 2008-06-12 | 2008-06-12 | Emergency hoisting and automatic bit feeding apparatus of oil-well rig |
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| Publication Number | Publication Date |
|---|---|
| CN201269045Y true CN201269045Y (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200596240U Expired - Fee Related CN201269045Y (en) | 2008-06-12 | 2008-06-12 | Emergency hoisting and automatic bit feeding apparatus of oil-well rig |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009267A (en) * | 2010-12-07 | 2011-04-13 | 哈尔滨正晨焊接切割设备制造有限公司 | Heavy type friction welding machine suitable for oversized hub disc structure |
| CN102167266A (en) * | 2011-01-24 | 2011-08-31 | 福田雷沃国际重工股份有限公司 | Main winch rapid-descent and confluent return oil regeneration system of rotary drilling rig |
| CN102536930A (en) * | 2010-12-28 | 2012-07-04 | 中国船舶重工集团公司第七一三研究所 | Closed loop secondary speed control device controlled by guide operation flow |
| CN103588130A (en) * | 2012-08-14 | 2014-02-19 | 王奇伟 | Programmable magneto-electric clutch winch |
| CN104213835A (en) * | 2014-08-29 | 2014-12-17 | 徐州徐工基础工程机械有限公司 | Speed control device of slurry and traveling systems of horizontal directional drilling machine |
| CN105715604A (en) * | 2016-03-17 | 2016-06-29 | 南阳二机石油装备集团股份有限公司 | Hanging load control valve bank of all-hydraulic drill |
| CN109209335A (en) * | 2015-10-14 | 2019-01-15 | 三重型能源装备有限公司 | A kind of oil-well rig automatic bit feed system |
| CN111255389A (en) * | 2020-02-27 | 2020-06-09 | 西安石油大学 | Electrically-driven automatic catwalk system and control method |
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2008
- 2008-06-12 CN CNU2008200596240U patent/CN201269045Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009267A (en) * | 2010-12-07 | 2011-04-13 | 哈尔滨正晨焊接切割设备制造有限公司 | Heavy type friction welding machine suitable for oversized hub disc structure |
| CN102536930B (en) * | 2010-12-28 | 2015-11-11 | 中国船舶重工集团公司第七一三研究所 | A kind of closed loop secondary arrangements for speed regulation of pilot operated flow control |
| CN102536930A (en) * | 2010-12-28 | 2012-07-04 | 中国船舶重工集团公司第七一三研究所 | Closed loop secondary speed control device controlled by guide operation flow |
| CN102167266B (en) * | 2011-01-24 | 2013-07-24 | 福田雷沃国际重工股份有限公司 | Main winch rapid-descent and confluent return oil regeneration system of rotary drilling rig |
| CN102167266A (en) * | 2011-01-24 | 2011-08-31 | 福田雷沃国际重工股份有限公司 | Main winch rapid-descent and confluent return oil regeneration system of rotary drilling rig |
| CN103588130A (en) * | 2012-08-14 | 2014-02-19 | 王奇伟 | Programmable magneto-electric clutch winch |
| CN104213835A (en) * | 2014-08-29 | 2014-12-17 | 徐州徐工基础工程机械有限公司 | Speed control device of slurry and traveling systems of horizontal directional drilling machine |
| CN104213835B (en) * | 2014-08-29 | 2016-09-21 | 徐州徐工基础工程机械有限公司 | A kind of horizontal directional drilling machine mud and the speed control unit of running gear |
| CN109209335A (en) * | 2015-10-14 | 2019-01-15 | 三重型能源装备有限公司 | A kind of oil-well rig automatic bit feed system |
| CN105715604A (en) * | 2016-03-17 | 2016-06-29 | 南阳二机石油装备集团股份有限公司 | Hanging load control valve bank of all-hydraulic drill |
| CN105715604B (en) * | 2016-03-17 | 2018-08-03 | 南阳二机石油装备集团股份有限公司 | A kind of all-hydraulic drill suspending weight control valve group |
| CN111255389A (en) * | 2020-02-27 | 2020-06-09 | 西安石油大学 | Electrically-driven automatic catwalk system and control method |
| CN111255389B (en) * | 2020-02-27 | 2022-03-25 | 西安石油大学 | Electrically-driven automatic catwalk system and control method |
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Addressee: Sun Xin Document name: Notification of Termination of Patent Right |
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